John P. Cello, MD


Dr. John Cello is an expert in gastrointestinal disorders and director of the Gastrointestinal Motility and Secretion Center at UCSF Medical Center. He cares for patients with gastrointestinal disorders at UCSF and San Francisco General Hospital. He is board certified in internal medicine and gastroenterology.

Cello earned a medical degree at Harvard University with high honors. He completed a residency in internal medicine at Peter Bent Brigham Hospital in Boston and a fellowship in gastroenterology at UCSF. His research addresses new treatments for gastrointestinal disorders, including bleeding and morbid obesity. He has received numerous awards, including the Distinguished Educator Award from the American Gastroenterology Association and American Society for Gastrointestinal Endoscopy. He is a fellow of the American Gastroenterological Association and a member the American College of Physicians, California Academy of Medicine, American Society of Gastrointestinal Endoscopy and Western Society for Clinical Investigation. He is a professor of medicine and surgery at UCSF.


Bariatric Surgery Center
400 Parnassus Ave., Sixth Floor, Reception Desk 6S
San Francisco, CA 94143-0338
Phone (existing patients):
(415) 353-2161
Phone (new patients):
(415) 353-2804
Fax: (415) 353-2505

Hours: Monday to Friday
8 a.m. – 5 p.m.

Center for the Study of Gastrointestinal Motility and Secretion
1701 Divisadero St., Suite 120
San Francisco, CA 94115
Phone: (415) 502-4444
Fax: (415) 502-2249

Conditions & Treatments

Academic Title


More about John P. Cello


Harvard School of Medicine 1969


Peter Brent Brigham Hospital, Internal Medicine 1972


VA Medical Center, Washington DC, Hepatology/Biochemistry 1973
UCSF Medical Center, Gastroenterology 1977

Selected Research and Publications

  1. Lee A, Aditi A, Bhat YM, Binmoeller KF, Hamerski C, Sendino O, Kane S, Cello JP, Day LW, Mohamadnejad M, Muthusamy VR, Watson R, Klapman JB, Komanduri S, Wani S, Shah JN. Endoscopic ultrasound-guided biliary access versus precut papillotomy in patients with failed biliary cannulation: a retrospective study. Endoscopy. 2017 Feb; 49(2):146-153.
  2. Cello JP, Rogers SJ. Morbid obesity-the new pandemic: medical and surgical management, and implications for the practicing gastroenterologist. Clin Transl Gastroenterol. 2013 Jun 06; 4:e35.
  3. Day LW, Cello JP, Somsouk M, Inadomi JM. Prevalence of gastric cancer versus colorectal cancer in Asians with a positive fecal occult blood test. Indian J Gastroenterol. 2011 Sep; 30(5):209-16.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.